Porous silica aerogel composite membrane and method for making the same and carbon dioxide sorption device

摘要

The present invention provides a porous silica aerogel composite membrane and method for making the same and a carbon dioxide sorption device. The porous silicon oxide aerogel composite membrane includes a porous aluminum oxide membrane having a plurality of macro pores with an average diameter larger than 50 nm and a porous silica aerogel membrane formed on at least one side of the porous aluminum oxide membrane and the macro pores of surface layers of the porous aluminum oxide membrane where the porous silica aerogel membrane has a plurality of meso pores with an average diameter of 2˜50 nm and is derived from methyltrimethoxysilane precursor by a sol-gel synthetic method.

主权项

1. A porous silicon oxide aerogel composite membrane, comprising:
a porous aluminum oxide membrane which has a plurality of macro pores with an average diameter larger than 50 nm, wherein the porous aluminum oxide membrane has a first side and a second side; and a porous silica aerogel membrane with a thickness of 40˜50 nm formed on at least one side of the porous aluminum oxide membrane and the macro pores on surface layers of the porous aluminum oxide membrane, wherein the porous silica aerogel membrane has a plurality of meso pores with an average diameter of 2˜50 nm and is derived from a methyltrimethoxysilane precursor by a sol-gel synthetic method.